fix: remove small issues

[TheLeoP]

• parser.parse_verbose calls parser.parse_verbose_line which tries to match the string against the pattern "(.) ?(.*)", which fails for empty strings. The verbose output or curl ends with a newline, resulting in an empty string being the last element of the list, which in turns results in a error that gets silently logged.
• :Rest last does not call run_request in a nio async context, which results in an error and the request not being made